WO1997013089A2 - Pipe connector - Google Patents

Pipe connector Download PDF

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Publication number
WO1997013089A2
WO1997013089A2 PCT/DE1996/001717 DE9601717W WO9713089A2 WO 1997013089 A2 WO1997013089 A2 WO 1997013089A2 DE 9601717 W DE9601717 W DE 9601717W WO 9713089 A2 WO9713089 A2 WO 9713089A2
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
fitting
area
stop
sleeve
Prior art date
Application number
PCT/DE1996/001717
Other languages
German (de)
French (fr)
Other versions
WO1997013089A3 (en
Inventor
Rolf Diederichs
Original Assignee
Mannesmann Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann Ag filed Critical Mannesmann Ag
Priority to DK96945131T priority Critical patent/DK0851986T3/en
Priority to EP96945131A priority patent/EP0851986B1/en
Priority to AT96945131T priority patent/ATE201094T1/en
Priority to KR1019980701827A priority patent/KR100301119B1/en
Priority to PL96326070A priority patent/PL181267B1/en
Priority to JP9513865A priority patent/JPH11512807A/en
Priority to DE59606886T priority patent/DE59606886D1/en
Publication of WO1997013089A2 publication Critical patent/WO1997013089A2/en
Publication of WO1997013089A3 publication Critical patent/WO1997013089A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/16—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
    • F16L13/161—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars the pipe or collar being deformed by crimping or rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F16L13/143—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element placed around the male part before crimping or rolling

Definitions

  • the invention relates to a pipe connection according to the generic term of
  • a generic pipe connection is known from Geberit (see excerpt from the company brochure).
  • a so-called composite pipe is pushed onto a gunmetal fitting, the composite pipe consisting of an inner pipe that transports the liquid with an aluminum jacket and an overlying outer pipe that takes over the external protection.
  • the inner tube and cladding tube are usually made of plastic.
  • the fitting has a region extending in the longitudinal direction, which is provided with a stop, up to which the pipe to be connected is pushed on.
  • the area adjacent to the stop usually has two ring grooves, in each of which a sealing ring is arranged.
  • the rest of the section is heavily contoured so that the tube that is slid on can be molded into the contour during pressing.
  • a disadvantage of this system is that the composite pipe can only be used for a narrow temperature and pressure range. Furthermore, the fitting is very complex to produce, since the contoured end regions and the sealing ring region have to be manufactured precisely. Another disadvantage is the remaining gap between the pushed-on pipe and the contoured area of the fitting. Aggressive substances dissolved in the liquid can penetrate this gap and the concentration can increase disproportionately due to multiple evaporation and, in the worst case, lead to so-called gap corrosion.
  • the object of the invention is to provide a pipe connection of the generic type which is also suitable for higher pressures and temperatures and in which the formation of crevice corrosion is avoided. This object is achieved with the features specified in the characterizing part of the main claim. Advantageous further developments are part of subclaims.
  • An advantage of the pipe connection according to the invention is that the required positioning of the pushed-on pipe on the fitting can be recognized directly visually without any additional aids.
  • the metallic press connection which has been tried and tested for years by deforming the pipe and fitting, is retained, so that high axial
  • the pipe-fitting transition is gap-free because the sealing ring is located in the end area of the fitting.
  • the stop is advantageously designed as a roof-like bead, since it can be produced in a simple manner using press machines.
  • the radial depth of the flat recess for the sealing ring should be as small as possible, since this is the cross-section-determined bottleneck of the conduit system.
  • it is also proposed to increase the inside diameter of the pipe in the pushed-on area, so that the cross section of the adjoining pipe section corresponds approximately to the inside width in the sealing area of the fitting. This largely avoids pressure losses in the connection area.
  • Figure 1 shows a longitudinal section through a first embodiment of the pipe joint according to the invention Figure 2 as Figure 1, but another embodiment
  • FIG. 1 shows a longitudinal section of a first embodiment of the pipe connection according to the invention, the left-hand section of the picture showing the pipe connection in the pushed-on state and the right-hand section of the picture showing the pipe connection after the pressing.
  • the core of the connection is a fitting 1, which has a bead-like, radially outwardly extending stop 2. This is followed, at least on one side, by a cylindrical section 3, 3 'extending in the longitudinal direction, which then merges into a section which has, for example, a flat recess 4, 4'. A sealing ring 5.5 'is arranged in this recess 4,4'.
  • two smooth-ended conduit pipes 6, 6 ' are pushed onto the fitting 1, namely as far as the stop 2.
  • the two pressing points are successively deformed by a pressing tool, not shown here.
  • a pressing tool not shown here.
  • the right-hand section of the picture shows the pressed state.
  • the deformed section 3 takes over the axial securing of the pipe connection and section 4' the sealing function.
  • both the pushed-on pipe 6' and the fitting section 3 'underneath are deformed.
  • the type of pressing for example hexagonal or lemon-shaped segments, depends on the contour of the mouth of the pressing jaws, not shown here.
  • Figure 2 shows a second embodiment, wherein the same reference numerals have been used for the same parts.
  • the left section of the picture shows the pipe connection in the pushed-on state and the right section of the picture shows the compressed state.
  • the geometry and shape of the fitting 1 is unchanged as in FIG. 1.
  • the pipe end sections are designed differently.
  • the smooth-ended pipes 7, 7 ' have a widened section 8, 8' in the push-on area on the fitting 1. This is chosen so that the inside width 9.9 'of the actual conduit 7.7' corresponds approximately to the inside width 10.10 'of the fitting 1 in the sealing area. This largely prevents pressure losses in the connection area.

Abstract

A pipe connector has a pipe whose smooth end section is pushed onto a metallic fitting with at least one elongated, sleeve-shaped area provided with at least one bead-shaped depression for receiving a packing ring and with a stop that extends radially outwards at the beginning of the sleeve-shaped area. Pipe and fitting are permanently joined by a pressing tool applied to the outside of pipe and fitting and which plastically deforms at least the pipe. Pipe (6, 6', 7, 7') and fitting (1) are made of metal, preferably of stainless steel (special steel) and titanium. The packing ring (5, 5') is arranged in a flat recess (4, 4') at the end of the sleeve-shaped area of the fitting (1). Pipe (6, 6', 7, 7') and fitting (1) form in the area between packing ring (5, 5') and stop (2) a deformation point (3') that secures them in the axial direction.

Description

Rohrverbindung Pipe connection
Beschreibungdescription
Die Erfindung betrifft eine Rohrverbindung gemäß dem Gattungsbegriff desThe invention relates to a pipe connection according to the generic term of
Hauptanspruches.Main claim.
Eine gattungsmäßige Rohrverbindung ist von der Firma Geberit bekannt (siehe Auszug aus dem Firmenprospekt). Bei diesem System wird auf einen Rotguß-Fitting ein sogenanntes Verbundrohr aufgeschoben, wobei das Verbundrohr aus einem die Flüssigkeit transportierenden Innenrohr mit einem Aluminiummantel und einem darüber liegenden, den Außenschutz übernehmenden Hüllrohr besteht. Üblicherweise sind Innenrohr und Hüllrohr aus Kunststoff gefertigt. Der Fitting weist einen in Längsrichtung sich erstreckenden Bereich auf, der mit einem Anschlag versehen ist, bis zu dem das zu verbindende Rohr aufgeschoben wird. Der dem Anschlag benachbarte Bereich weist üblicherweise zwei Ringnuten auf, in denen je ein Dichtring angeordnet ist. Der restliche Abschnitt ist stark konturiert, so daß sich das aufgeschobene Rohr bei der Verpressung in die Kontur einformen kann. Nach dem Aufschieben wird von außen eine Preßzange angesetzt und das Rohr sowohl im Dichtringbereich als auch im konturierten Bereich aufgepreßt. Dabei übernimmt der Dichtringbereich die Dichtfunktion und der konturierte Bereich die axiale Sicherung. Nachteilig bei diesem System ist, daß das Verbundrohr nur für einen engen Temperatur- und Druckbereich einsetzbar ist. Weiterhin ist der Fitting in seiner Herstellung sehr aufwendig, da die konturierten Endbereiche sowie der Dichtringbereich präzise hergestellt werden müssen. Ein weiterer Nachteil ist der verbleibende Spalt zwischen aufgeschobenem Rohr und konturiertem Bereich des Fittings. In diesen Spalt können in der Flüssigkeit gelöste aggressive Stoffe eindringen und durch mehrfache Verdunstung die Konzentration überproportional ansteigen und im ungünstigsten Fall zu einer sogenannten Spaltkorrosion führen. Aufgabe der Erfindung ist es, eine Rohrverbindung der gattungsmäßigen Art anzugeben, die auch für höhere Drücke und Temperaturen geeignet ist und bei der die Entstehung vonr Spaltkorrosion vermieden wird. Diese Aufgabe wird mit den im kennzeichnenden Teil des Hauptanspruches angegebenen Merkmalen gelöst. Vorteilhafte Weiterbildungen sind Bestandteil von Unteransprüchen.A generic pipe connection is known from Geberit (see excerpt from the company brochure). In this system, a so-called composite pipe is pushed onto a gunmetal fitting, the composite pipe consisting of an inner pipe that transports the liquid with an aluminum jacket and an overlying outer pipe that takes over the external protection. The inner tube and cladding tube are usually made of plastic. The fitting has a region extending in the longitudinal direction, which is provided with a stop, up to which the pipe to be connected is pushed on. The area adjacent to the stop usually has two ring grooves, in each of which a sealing ring is arranged. The rest of the section is heavily contoured so that the tube that is slid on can be molded into the contour during pressing. After being pushed on, a pair of crimping pliers is attached and the pipe is pressed on both in the sealing ring area and in the contoured area. The sealing ring area takes on the sealing function and the contoured area the axial securing. A disadvantage of this system is that the composite pipe can only be used for a narrow temperature and pressure range. Furthermore, the fitting is very complex to produce, since the contoured end regions and the sealing ring region have to be manufactured precisely. Another disadvantage is the remaining gap between the pushed-on pipe and the contoured area of the fitting. Aggressive substances dissolved in the liquid can penetrate this gap and the concentration can increase disproportionately due to multiple evaporation and, in the worst case, lead to so-called gap corrosion. The object of the invention is to provide a pipe connection of the generic type which is also suitable for higher pressures and temperatures and in which the formation of crevice corrosion is avoided. This object is achieved with the features specified in the characterizing part of the main claim. Advantageous further developments are part of subclaims.
Vorteilhaft bei der erfindungsgemäßen Rohrverbindung ist, daß die erforderliche Positionierung des aufgeschobenen Rohres auf den Fitting ohne weitere Hilfsmittel unmittelbar visuell erkennbar ist. Die seit Jahren bewährte metallische Preßverbindung durch Verformung von Rohr und Fitting wird beibehalten, so daß hohe axialeAn advantage of the pipe connection according to the invention is that the required positioning of the pushed-on pipe on the fitting can be recognized directly visually without any additional aids. The metallic press connection, which has been tried and tested for years by deforming the pipe and fitting, is retained, so that high axial
Längskräfte und damit hohe Innendrücke übertragen werden können. Der Übergang Rohr-Fitting ist spaltfrei, da der Dichtring im Endbereich des Fittings angeordnet ist.Longitudinal forces and thus high internal pressures can be transmitted. The pipe-fitting transition is gap-free because the sealing ring is located in the end area of the fitting.
In vorteilhafter Weise wird der Anschlag als dachartiger Wulst ausgebildet, da dieser mit Preßmaschinen in einfacher Weise herstellbar ist. Die radiale Tiefe der flachverlaufenden Ausnehmung für den Dichtring sollte so gering wie möglich sein, da dies der querschnittsbestimmte Engpaß des Leitungsrohrsystems ist. Um das letztgenannte Problem abzumildern, wird außerdem vorgeschlagen, die lichte Weite des Rohres im aufgeschobenen Bereich zu vergrößern, so daß der Querschnitt des daran anschließenden Rohrabschnittes in etwa der lichten Weite im Dichtbereich des Fittings entspricht. Dadurch werden Druckverluste im Verbindungsbereich weitgehend vermieden.The stop is advantageously designed as a roof-like bead, since it can be produced in a simple manner using press machines. The radial depth of the flat recess for the sealing ring should be as small as possible, since this is the cross-section-determined bottleneck of the conduit system. To alleviate the latter problem, it is also proposed to increase the inside diameter of the pipe in the pushed-on area, so that the cross section of the adjoining pipe section corresponds approximately to the inside width in the sealing area of the fitting. This largely avoids pressure losses in the connection area.
Anhand zweier Ausführungsbeispiele wird die erfindungsgemäße Rohrverbindung näher erläutert.The pipe connection according to the invention is explained in more detail using two exemplary embodiments.
Es zeigen:Show it:
Figur 1 einen Längsschnitt durch eine erste Ausführungsform der erfindungsgemäßen Rohrverbindung Figur 2 wie Figur 1 , jedoch eine andere AusführungsformFigure 1 shows a longitudinal section through a first embodiment of the pipe joint according to the invention Figure 2 as Figure 1, but another embodiment
In Figur 1 ist in einem Längsschnitt eine erste Ausführungsform der erfindungsgemäßen Rohrverbindung dargestellt, wobei der linke Bildabschnitt die Rohrverbindung im aufgeschobenen Zustand und der rechte Bildabschnitt die Rohrverbindung nach der Verpressung zeigt. Kernstück der Verbindung ist ein Fitting 1 , der einen wulstartig ausgebildeten, radial nach außen sich erstreckenden Anschlag 2 aufweist. Daran schließt sich wenigstens nach einer Seite ein in Längsrichtung sich erstreckender zylindrischer Abschnitt 3,3' an, der dann übergeht in eine z.B. als flachverlaufende Ausnehmung 4,4' aufweisenden Abschnitt. In dieser Ausnehmung 4,4' ist ein Dichtring 5,5' angeordnet. In diesem Ausführungsbeispiel sind zwei glattendige Leitungsrohre 6,6' auf den Fitting 1 aufgeschoben, und zwar bis zum Anschlag 2. Durch ein hier nicht dargestelltes Preßwerkzeug werden nacheinander die zwei Verpreßstellen verformt. Wie eingangs schon erwähnt zeigt der rechte Bildabschnitt den verpreßten Zustand. Dabei übernimmt der verformte Abschnitt 3' die axiale Sicherung der Rohrverbindung und der Abschnitt 4' die Dichtfunktion. Im erstgenannten Abschnitt 3' werden sowohl das aufgeschobene Rohr 6' als auch der darunterliegende Fittingabschnitt 3' verformt. Die Art der Einpressung, z.B. sechskantförmige oder zitronenförmige Segmente hängt ab von der Konturierung des Maules der hier nicht dargestellten Preßbacken.1 shows a longitudinal section of a first embodiment of the pipe connection according to the invention, the left-hand section of the picture showing the pipe connection in the pushed-on state and the right-hand section of the picture showing the pipe connection after the pressing. The core of the connection is a fitting 1, which has a bead-like, radially outwardly extending stop 2. This is followed, at least on one side, by a cylindrical section 3, 3 'extending in the longitudinal direction, which then merges into a section which has, for example, a flat recess 4, 4'. A sealing ring 5.5 'is arranged in this recess 4,4'. In this exemplary embodiment, two smooth-ended conduit pipes 6, 6 'are pushed onto the fitting 1, namely as far as the stop 2. The two pressing points are successively deformed by a pressing tool, not shown here. As already mentioned at the beginning, the right-hand section of the picture shows the pressed state. The deformed section 3 'takes over the axial securing of the pipe connection and section 4' the sealing function. In the first-mentioned section 3 ', both the pushed-on pipe 6' and the fitting section 3 'underneath are deformed. The type of pressing, for example hexagonal or lemon-shaped segments, depends on the contour of the mouth of the pressing jaws, not shown here.
Figur 2 zeigt eine zweite Ausführungsform, wobei für gleiche Teile gleiche Bezugszeichen verwendet worden sind. Auch hier zeigt der linke Bildabschnitt die Rohrverbindung im aufgeschobenen Zustand und der rechte Bildabschnitt den verpreßten Zustand. Der Fitting 1 ist in seiner Geometrie und Form unverändert wie in Figur 1. Anders gestaltet sind die Rohrendenabschnitte. Die glattendigen Rohre 7,7' weisen im Aufschiebebereich auf den Fitting 1 einen aufgeweiteten Abschnitt 8,8' auf. Dieser wird so gewählt, daß die lichte Weite 9,9' des eigentlichen Leitungsrohres 7,7' in etwa der lichten Weite 10,10' des Fitting 1 im Dichtbereich entspricht. Damit werden Druckverluste im Verbindungsbereich weitgehend vermieden. Figure 2 shows a second embodiment, wherein the same reference numerals have been used for the same parts. Here, too, the left section of the picture shows the pipe connection in the pushed-on state and the right section of the picture shows the compressed state. The geometry and shape of the fitting 1 is unchanged as in FIG. 1. The pipe end sections are designed differently. The smooth-ended pipes 7, 7 'have a widened section 8, 8' in the push-on area on the fitting 1. This is chosen so that the inside width 9.9 'of the actual conduit 7.7' corresponds approximately to the inside width 10.10 'of the fitting 1 in the sealing area. This largely prevents pressure losses in the connection area.

Claims

Patentansprüche: Claims:
1. Rohrverbindung mit einem Rohr, dessen glattendiger Endabschnitt auf einem metallischen Fitting aufgeschoben ist, der mindestens einen in Längsrichtung sich erstreckenden, hülsenartigen Bereich aufweist, der mit mindestens einer sickenartigen Ausnehmung zur Aufnahme eines Dichtringes und mit einem zu Beginn der Erstreckung liegenden, radial nach außen sich erstreckenden Anschlag versehen ist und Rohr und Fitting mittels eines außen angesetzten mindestens das Rohr plastisch verformenden Preßwerkzeuges unlösbar miteinander verbunden sind, dadurch gekennzeichnet, daß Rohr (6, 6', 7, 7') und Fitting (1) aus Metall, vorzugsweise aus nichtrostendem Stahl (Edelstahl) und Titan sind und am Ende der Erstreckung des hülsenartigen Bereiches des Fittings (1) in einer flachverlaufenden Ausnehmung (4, 4') der Dichtring (5, 5') angeordnet ist und Rohr (6, 6', 7, 7') und Fitting (1) im Bereich zwischen Dichtring (5, 5') und Anschlag (2) eine die axiale Sicherung bildende Verformungssteile (3') bilden.1. Pipe connection with a pipe, the smooth end portion of which is pushed onto a metallic fitting, which has at least one sleeve-like region extending in the longitudinal direction, which has at least one bead-like recess for receiving a sealing ring and with one lying at the beginning of the extension, radially towards the outside extending stop is provided and the pipe and fitting are inseparably connected to one another by means of an externally attached pressing tool which at least plastically deforms the pipe, characterized in that the pipe (6, 6 ', 7, 7') and fitting (1) are made of metal, preferably are made of stainless steel (stainless steel) and titanium and at the end of the extension of the sleeve-like area of the fitting (1) in a flat recess (4, 4 ') the sealing ring (5, 5') is arranged and tube (6, 6 ', 7, 7 ') and fitting (1) in the area between the sealing ring (5, 5') and stop (2) a deformation part (3 ') form.
2. Rohrverbindung nach Anspruch 1 , dadurch gekennzeichnet,- daß der Anschlag (2) als dachartiger Wulst ausgebildet ist.2. Pipe connection according to claim 1, characterized in that - the stop (2) is designed as a roof-like bead.
3. Rohrverbindung nach Anspruch 1 , dadurch gekennzeichnet, daß die radiale Erstreckung der flachverlaufenden Ausnehmung (4, 4') mindestens 5% des Außendurchmessers des Fittings (1) beträgt.3. Pipe connection according to claim 1, characterized in that the radial extent of the shallow recess (4, 4 ') is at least 5% of the outside diameter of the fitting (1).
4. Rohrverbindung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß das Rohr im aufgeschobenen Bereich (8, 8') eine größere lichte Weite aufweist als der übrige daran sich anschließende Rohrabschnitt (7, 7'). 4. Pipe connection according to claims 1 to 3, characterized in that the tube in the pushed-on area (8, 8 ') has a larger clear width than the rest of the tube section (7, 7') adjoining it.
PCT/DE1996/001717 1995-09-19 1996-09-09 Pipe connector WO1997013089A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK96945131T DK0851986T3 (en) 1995-09-19 1996-09-09 Pipe
EP96945131A EP0851986B1 (en) 1995-09-19 1996-09-09 Pipe connector
AT96945131T ATE201094T1 (en) 1995-09-19 1996-09-09 PIPE CONNECTION
KR1019980701827A KR100301119B1 (en) 1995-09-19 1996-09-09 Pipe connector
PL96326070A PL181267B1 (en) 1995-09-19 1996-09-09 Pipe joint
JP9513865A JPH11512807A (en) 1995-09-19 1996-09-09 Pipe fittings
DE59606886T DE59606886D1 (en) 1995-09-19 1996-09-09 PIPE CONNECTION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19536598.4 1995-09-19
DE19536598A DE19536598C2 (en) 1995-09-19 1995-09-19 Pipe connection

Publications (2)

Publication Number Publication Date
WO1997013089A2 true WO1997013089A2 (en) 1997-04-10
WO1997013089A3 WO1997013089A3 (en) 1997-07-10

Family

ID=7773760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/001717 WO1997013089A2 (en) 1995-09-19 1996-09-09 Pipe connector

Country Status (11)

Country Link
EP (1) EP0851986B1 (en)
JP (1) JPH11512807A (en)
KR (1) KR100301119B1 (en)
CN (1) CN1063259C (en)
AT (1) ATE201094T1 (en)
CA (1) CA2232417A1 (en)
CZ (1) CZ84298A3 (en)
DE (2) DE19536598C2 (en)
DK (1) DK0851986T3 (en)
PL (1) PL181267B1 (en)
WO (1) WO1997013089A2 (en)

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DE102008039446B4 (en) * 2008-07-07 2015-12-17 Viega Gmbh & Co. Kg Arrangement and method for producing a non-detachable workpiece connection
DE202009006248U1 (en) 2009-05-01 2009-08-20 Pp-Plastic Peuker Ohg Arrangement for the liquid-tight detachable connection of two liquid containers by means of a pipe connection
CN102072370A (en) * 2010-11-15 2011-05-25 汪仕斌 Connecting method for socket ring pressing type metal pipe fitting
JP2013066911A (en) * 2011-09-22 2013-04-18 Nisshin Steel Co Ltd Connection body of copper tube and stainless steel pipe and manufacturing method thereof
JP6108663B2 (en) * 2012-01-13 2017-04-05 株式会社渡辺製作所 Method for manufacturing a bilayer pipe branch structure
KR102411134B1 (en) * 2014-04-24 2022-06-20 헨 게엠베하 운트 콤파니 카게. Connector assembly
KR102359426B1 (en) * 2019-04-09 2022-02-07 방만혁 Apparatus for coupling pipes
CN112628488B (en) * 2020-12-25 2022-07-26 深圳市喜德丽实业有限公司 Tensile reinforcement connection method for metal pipe fitting
KR102517374B1 (en) * 2022-06-03 2023-03-31 박병근 A prefabricated hydroponic cultivation device typed of eco-friendly plastic modular

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EP0851986A2 (en) 1998-07-08
DK0851986T3 (en) 2001-05-28
KR19990044578A (en) 1999-06-25
CZ84298A3 (en) 1998-07-15
CN1063259C (en) 2001-03-14
JPH11512807A (en) 1999-11-02
DE19536598A1 (en) 1997-03-20
DE59606886D1 (en) 2001-06-13
DE19536598C2 (en) 2000-01-13
CA2232417A1 (en) 1997-04-10
KR100301119B1 (en) 2001-11-22
EP0851986B1 (en) 2001-05-09
PL181267B1 (en) 2001-06-29
ATE201094T1 (en) 2001-05-15
CN1196783A (en) 1998-10-21
PL326070A1 (en) 1998-08-17
WO1997013089A3 (en) 1997-07-10

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